title: A gut reaction: the cells of pleasure.
mesh_terms: D000328:Adult; D003106:Colon / Q000293:injuries; D003937:Diagnosis, Differential; D004733:Enema / Q000009:adverse effects; D006471:Gastrointestinal Hemorrhage / Q000209:etiology; D006716:Homosexuality; D006801:Humans; D007111:Immunity, Cellular; D007153:Immunologic Deficiency Syndromes / Q000175:diagnosis / Q000453:epidemiology* / Q000276:immunology; D008297:Male; D009518:New York; D011696:Purpura, Thrombocytopenic / Q000175:diagnosis / Q000276:immunology*; D013601:T-Lymphocytes / Q000276:immunology